CN1641710A - Navigation apparatus - Google Patents
Navigation apparatus Download PDFInfo
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- CN1641710A CN1641710A CN200510005703.4A CN200510005703A CN1641710A CN 1641710 A CN1641710 A CN 1641710A CN 200510005703 A CN200510005703 A CN 200510005703A CN 1641710 A CN1641710 A CN 1641710A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
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Abstract
A storage medium of a car navigation apparatus holds painted road sign information that is linked to a running lane of an approach road around an intersection. Suppose that a direction of an exit road with respect to an approach road at an intersection belongs to a peripheral portion of one of directional areas that are provided to determine at an intersection the approximate direction of the exit road with respect to the approach road. In this case, the approximate direction is specified based on the corresponding painted road sign information. The specified approximate direction is then outputted as a voice and/or image display. Thus, utilizing the painted road sign information can reduce user's disagreeable feeling to the approximate direction.
Description
Invention field
The present invention relates to a kind of guider, be used for decision in the approximate direction of intersection upper outlet road (exitroad) with respect to entranceway (approach road).
Background technology
Usually, some automobile navigation apparatus execution right side/left-hand rotation directions are determined.The right side/left-hand rotation direction determines to be exactly that decision is in the approximate direction of intersection upper outlet road with respect to entranceway.Fig. 9 shows as the right side/left-hand rotation direction and determines and the general view of the intersection of an example of definite result's voice output.
Before vehicle 51 was about to enter intersection 52, automobile navigation apparatus was carried out the right side/left-hand rotation direction and is determined.Information decision exit road 54 is with respect to the angle θ of entranceway 53 at first, according to the map.Then, with the craspedodrome direction, tiltedly right, right front to, right-hand direction, tiltedly the right back to, right back to, backward directions (returning direction), left back to, tiltedly the left back to, left direction, left front to and tiltedly left to the decision of one of a plurality of direction scopes be the direction scope under the exit road 54 with respect to entranceway 53.Then, the direction scope with this decision is defined as the approximate direction of exit road 54 with respect to entranceway 53.
Automobile navigation apparatus output then, for example, sound 57 " Pong, tiltedly right " is as the approximate direction of decision.
In the right side/left-hand rotation direction was determined, automobile navigation apparatus was only by determining that the direction scope under the above-mentioned angle θ decides the approximate direction of exit road 54 with respect to entranceway 53.
But, in this simple right side/left-hand rotation direction is determined, the approximate direction that user's sense of direction is different from automobile navigation apparatus sometimes and is determined.
For example, when dividing the craspedodrome direction and tiltedly the critical angle of right is 15 °, if the angle θ in Fig. 9 is 14 °, then approximate direction becomes the craspedodrome direction.In addition, if angle θ is 16 °, then approximate direction becomes oblique right.But even if angle θ is 16 ° and output sound 57 " Pong, tiltedly right ", the user of vehicle 51 may feel the more approaching craspedodrome direction of direction of exit road 54 according to the angle of another road that connects intersection 52 etc.In this case, the user do not know sound guide indicated be exit road 54 or the right exit road 58 that is different from this guidance route.In addition, may even if the user understands this sound guide indication exit road 54 by other guide display, but the user feel " exit road 54 is in the craspedodrome direction "?
On the other hand, in many cases, on the intersection, the intersection Way out uses the japanning road markings, shows intuitively in the road traffic sign in roadside, road etc.In Fig. 9, japanning road markings 55 is arranged on the Through Lane of entranceway 53, and japanning road markings 56 is arranged on the right-turn lane of entranceway 53.According to the inventor's research, such demonstration is approximate consistent with vehicle user's sense of direction.In addition, in many cases, these intuitively the information of intersection Way out be recorded in the map datum of automobile navigation apparatus.
Summary of the invention
The purpose of this invention is to provide a kind of guider and be used on the intersection for the user indicates the approximate direction of exit road with respect to entranceway, it is arranged on the inconsistent sense that the information that shows about intersection Way out intuitively on the road reduces user's pairing approximation direction by utilization.
For achieving the above object, the invention provides a kind of guider, comprising: a storage medium is used to comprise the Way out information that shows based near the Way out intuitively that is arranged on the intersection; A decision unit is used for based on the Way out information decision that is stored in described storage medium in the approximate direction of this intersection upper outlet road with respect to entranceway; And a display unit, be used for showing exit road based on the approximate direction of this decision.
According to above-mentioned formation, this guider shows and is stored in Way out information on the storage medium based on being arranged near the intersection Way out intuitively, decision is in the approximate direction of intersection upper outlet road with respect to entranceway, and the demonstration based on the direction of this decision is provided.Therefore, be used on the intersection, indicating exit road this guider with respect to the approximate direction of entranceway for the user, be arranged on the information that the Way out of intersection intuitively on the road shows by utilization, can reduce the inconsistent sense of user's pairing approximation direction.
Note, exit road means with respect to the approximate direction of entranceway, be not the concrete angle of exit road, but the user can roughly grasp a direction of exit road direction with respect to entranceway, such as keep straight on, turn right, turn left, oblique right and along road.
The accompanying drawing summary
From the detailed description below with reference to accompanying drawing, above-mentioned and other purposes, characteristic and advantage of the present invention will become more apparent.In the accompanying drawings:
Fig. 1 is a module map that shows the structure of automobile navigation apparatus according to an embodiment of the invention;
Fig. 2 shows the structure of road data form;
Fig. 3 is a synoptic diagram that shows the structure of road;
Fig. 4 shows the structure of guide data form;
Fig. 5 is a form that is presented at each bit of track japanning road markings information and distributes to the corresponding relation between the meaning of this each bit;
Fig. 6 is that the right side/left-hand rotation direction that a demonstration is carried out by control circuit is determined the process flow diagram of program;
Fig. 7 is the synoptic diagram that a demonstration is provided for the direction scope of definite approximate direction;
Fig. 8 is the synoptic diagram of the marginal portion of a display direction scope; And
Fig. 9 is used to carry out the synoptic diagram that the right side/left-hand rotation direction is determined and definite result is somebody's turn to do in voice output in the prior art.
The detailed description of most preferred embodiment
Below embodiment of the present invention will be described.Fig. 1 shows the structure of automobile navigation apparatus 1 according to an embodiment of the invention.This automobile navigation apparatus 1 has a position sensor 11, storage inside control module 16, operating switch group 17, exterior storage control module 19, display unit 20, a Long-distance Control sensor 21 and a control circuit 18 that connects these unit.
The signal that Long-distance Control sensor 21 output receives from remote controllers 22 is to control circuit 18, these remote controllers based on user's operation by transmitted radio signal such as infrared radiations.
Storage inside control module 16 has such permanent storage media such as HDD (hard drive), based on from controls such as the control commands of control circuit 18 from this permanent storage media reading of data, and if possible, write data to this permanent storage media.The information on the permanent storage media of being stored in is the so-called map match data (map matching data) that are used to improve position detection accuracy, comprises the various data of map datum and continental embankment (landmark) data and be used to operate program of automobile navigation apparatus 1 etc.
Exterior storage control module 19 control is from such as reading of data the such exterior storage media 30 of DVD-ROM, memory stick or storage card, and if possible, writes data to this exterior storage media 30.The information that is stored on the exterior storage media 30 is the excessive data of map match data, map datum and continental embankment data etc.
The map datum that is kept in storage inside media 16 or the exterior storage media 30 comprises the road data form.Fig. 2 has schematically shown the structure of road data form.The road data form comprises a plurality of road forms.
The road form offers each one way access (one-side road).By determine a road that comprises a plurality of links (link) and node with and direction (forward or backward directions, direction etc.) up or down come to determine uniquely one way access.Fig. 3 has shown one way access 40.This one way access 40 is one and comprises link 34, node 31, link 35, node 32, link 36, node 33 and link 37, corresponding to along the direction of described order as forwards to road.Note during along its direction running, the link that enters a node of this one way access being called " the direct prime link " of this node at one way access when vehicle.In Fig. 2, the road data form comprises the road form and other the road form (corresponding to suspension points mark 41) of one way access 40.
Each road form has a plurality of node forms, and each node form offers each node of road.In Fig. 2, the road data form comprises the node form of node 31, node 32 and node 33, and other node form (corresponding to suspension points mark 42).
Each node form has the information about node, that is, and and node coordinate information, node-link link information, link ID, road width; Lane information etc.The latitude and the longitude of node coordinate information representation node.The track that (one or more) link, this link that node-link link information represents to be connected to this node left from this link of this node with respect to the angle of the direct prime link of this node and being used in this direct prime link.Link ID is illustrated in the identifying information of the link that follows hard on this node in the one way access.Dao Lukuandu ﹠amp; Lane information is illustrated in the road width of the direct prime link of this node in this one way access and the quantity in track.
In addition, the map datum that is stored in storage inside control module 16 or the exterior storage media 30 comprises the guide data form.Fig. 4 schematically shows the structure of guide data form.The guide data form has a plurality of extra node forms, and they offer the node form in the road data form.In Fig. 4, the guide data form comprises a corresponding extra node form of the node form with node 32 in one way access 40, and other extra node form (corresponding to suspension points sign 43).
Extra node form has the information of the amplification demonstration of the part of being used for guidance route (for example, intersection).Extra node form has the information such as the quantity of road name, nodename, node entrance lane, node Way out lane position, node Way out and track japanning road markings information.Road name is represented and the title that comprises the corresponding one way access of road form of this node form.Nodename is represented the title (for example, the title of intersection) with this node form node corresponding.The track quantity of the direct prime node of this node of quantitaes of node entrance lane.Node Way out lane position is illustrated in and will and follows hard on the track that the link of this node leaves from this node one way access in the direct prime link.The node Way out is illustrated in the link that follows hard on this node in the one-sided road angle with respect to direct prime link.
The japanning road markings indicated direction on each track that is drawn in the direct prime link is used in the information representation of track japanning road markings.This japanning road markings is that the direction intuitively such as the arrow that shows link shows, when vehicle vehicle when the track with this japanning road markings enters this node leaves from this link of this node.This shows approximate consistent with vehicle user's sense of direction.
Track japanning road markings information is the 8-Bit data.Fig. 5 is presented at each bit of track japanning road markings information and distributes to the form of the corresponding relation between the meaning of this each bit.In track japanning road markings information, the 7th bit (higher bit) to the 0th bit (lowest bit) corresponding to 8 directions, that is craspedodrome direction,, tiltedly right, right-hand direction, tiltedly the right back to, backward directions, tiltedly the left back to, left direction and tiltedly left to.Bit value is " 1 " in the direction that the japanning road markings that uses the track is represented, bit value is " 0 " in the direction that the japanning road markings represents and do not use.For example, about the track japanning road markings information with track of " craspedodrome " and " left-hand rotation " japanning road markings, the value of the 7th bit and the 1st bit is " 1 " and the value of other bits is " 0 ".
When starting automobile navigation apparatus 1, the CPU of control circuit 18 reads boot and operating system (OS) etc. and carries out them from ROM, to realize hardware controls based on this OS and to handle management.That moves on this OS is treated to editmenu, destination setting program, route search utility, map display program and other programs.
Note determining current location if desired when these programs of execution, the CPU of control circuit 18 is based on the calculated signals current location of exporting from the sensor 12 to 15 of position sensor 11 that is used for determining current location.At this moment, owing to have dissimilar errors respectively, determine current location by complementally using these a plurality of sensors by the CPU of control circuit 18 from the output of various sensors 12 to 15.
Below, will be used for CPU and read the operation that is described as program itself with the operation of executive routine.
Editmenu is classified to menu based on the function of program or purpose etc. and shows various programs of operating on OS, so that begin to carry out the program of being selected by the user from menu shows.Attention forms the menu demonstration by the menu image data being outputed to display unit 20, and further, based on the acquisition of signal user's who is input to control circuit 18 selection, this signal obtains via Long-distance Control sensor or operating switch group 17 by the selection operation (mouse moves or press confirming button etc.) of remote controllers 22.
The destination setting program is used to be provided with the destination.The demonstration that the destination setting program provides display unit 20 to impel the user to import the destination, and destination based on user's input of using remote controllers 22 or operating switch group 17, destination information is stored among the RAM of control circuit 18, thereby realize this setting.
The route search utility is automatically selected the optimal route from current location to the destination that is provided with by the destination setting program, and makes display unit 20 show that selected route is as guidance route.As the automatic setting of optimal route, known have a Dijkstra method etc.
Map display program is based on the current location information of determining, by using map datum that storage inside control module 16 or exterior storage control module 19 read and such as the excessive data of the guidance route that is formed by the route search utility, stacked vehicle current location mark, and make display unit 20 show that these stacked data are on display surface.In addition, when vehicle during just near the intersection in the guidance route, map display program makes and shows that 20 provide the voice output or the video image that how to turn over this intersection about vehicle to show.For example, when turning right or turn left, voice output " right-hand rotation " or " left-hand rotation " etc.If guidance route is to walk along road, then there is not voice output.
To determine that program schematically provides turning to of above-mentioned guidance route definite by carry out right-hand rotation/left-hand rotation direction of being called by control circuit 18 from map display program.
Fig. 6 determines the process flow diagram of program for showing the right side/left-hand rotation direction.Control circuit 18 is carried out these programs, and therefore, at first, in step 205, decision is the angle θ between inbound link and the outbound in Object node (subject node).Object node be exactly one with as determining the intersection node corresponding of exit road with respect to the object of the approximate direction of entranceway.The right side/when the left-hand rotation direction was determined program, one was exactly Object node corresponding to the node intersection, that the vehicle next one will pass through when calling from map display program.In addition, inbound link is the link that was right after in the guidance route before Object node, and outbound is the link that is right after in the guidance route after Object node.If the Way out of the Way in of inbound link and outbound is identical, then angle θ is zero; If outbound is vertically turned right with respect to inbound link, then angle θ is 90 °; If outbound vertically turns left with respect to inbound link, then angle θ is-90 °.
More particularly, the processing of step 205 is the node forms that read the Object node in the road data form (see figure 2) that is included in road, this road is the road on the Object node direction that is traveling in inbound link, and reads outbound in the node-link link information that is included in the node form with respect to the information of the angle of inbound link.
Then, in step 210, be identified for determining the direction scope critical angle α of direction
i(i=1,2 ...).In order to determine above-mentioned approximate direction, will be in the scope on the direction of separating as the direction scope.Fig. 7 has shown direction scope and their critical angle α
iExample.In the drawings, center 61 is corresponding to the position of Object node, and 360 ° of directions at center 61 are corresponding to 360 ° of directions of Object node.Downward in the drawings direction is the backward directions from the Object node to the inbound link.Line segment 62 to 73 expression critical angle α
i(in Fig. 7, i=1 ..., 12), so that 360 ° of directions are divided into 12 direction scopes.Notice that boundary angle [alpha] i is serve as the dextrorotation gyration that axle begins from the craspedodrome direction from inbound link (corresponding to the direction of dotted arrow) by center 61 with center 61, it has greater than-180 ° and smaller or equal to+180 ° span.In this case, at critical angle α
1α
12In, angle value increases progressively by 30 °, that is, and and α
7165 ° of (=-), α
8, α
9, α
10, α
11, α
12, α
1, α
2, α
3, α
4, α
5, α
6165 ° of (=+).At critical angle α
12With α
1Between scope be direction scope corresponding to approximate craspedodrome direction; At critical angle α
1With α
2Between scope be direction scope corresponding to approximate oblique right; At critical angle α
2With α
3Between scope be corresponding to approximate right front to the direction scope; At critical angle α
3With α
4Between scope be direction scope corresponding to approximate right-hand direction; At critical angle α
4With α
5Between scope be corresponding to approximate oblique right back to the direction scope; At critical angle α
5With α
6Between scope be corresponding to approximate right back to the direction scope; At critical angle α
6With α
7Between scope be direction scope corresponding to approximate backward directions; At critical angle α
7With α
8Between scope be corresponding to approximate left back to the direction scope; At critical angle α
8With α
9Between scope be corresponding to approximate oblique left back to the direction scope; At critical angle α
9With α
10Between scope be direction scope corresponding to approximate left direction; At critical angle α
10With α
11Between scope be corresponding to approximate left front to the direction scope; And at critical angle α
11With α
12Between scope be corresponding to approximate oblique left to the direction scope.
In step 210, determine such direction scope critical angle α based on whether connecting along the such information of road of exercising direction such as the shape (three intersecting roadss, four intersecting roadss etc.) of the intersection of Object node, the road type, road width, angle and the Object node that are connected to the link of Object node
iQuantity and critical angle α
iValue separately.For example, if the intersection of Object node is three intersecting roadss, critical angle α is set then
iQuantity the direction scope corresponding to the multiple of " 3 " of providing is provided.If the intersection of Object node is four intersecting roadss, critical angle α is set then
iQuantity the direction scope corresponding to the multiple of " 4 " of providing is provided.In addition, critical angle α is set
iValue so that be connected to the center of direction by a direction scope of the link of Object node.
In step 215, select direction scope that a conduct determines candidate with and the both sides critical angle.Selection based on the total degree travel direction scope of execution in step 215 after the right side/the left-hand rotation direction is determined program start.More particularly, if current selection is the j time selection, then select bigger critical angle to become α
jRegional extent.Below, selected both sides critical angle is α
m, α
n(note α
m＜α
n).Only note when the direction scope of selecting is between line segment 69 and 70 α
7=195 ° of establishments.
Then, in step 220, determine whether the angle θ of decision in step 210 belongs to definite candidate direction scope of selecting in step 215.More particularly, determine α
m＜θ＜α
nWhether set up.If angle θ belongs to this direction scope, then handle proceeding to step 225, and if angle θ does not belong to this direction scope, then handle proceeding to step 250.
In step 225, current definite candidate direction scope is defined as determining the direction of direction as a result.As the direction of determining the result is exactly as being determined routine call and turned back to the approximate direction of the rreturn value of calling the initiation program by the right side/left-hand rotation direction.Call the initiation program and carry out demonstration corresponding to the approximate direction of rreturn value etc.
In step 230, determine whether angle θ belongs to corresponding to determining the marginal portion of the scope of direction as a result.More particularly, determine α
n-ε＜θ≤α
nPerhaps α
m＜θ≤α
mWhether+ε sets up, and perhaps they all are false.Notice that ε is a predetermined angular.If θ belongs to the marginal portion, then handle proceeding to step 235, and if θ does not belong to the marginal portion, then processing finishes, and rreturn value turns back to the initiation program of calling.
Fig. 8 is the synoptic diagram of the marginal portion of display direction scope.In the figure, in direction scope as described in Figure 7, keep α
m=α
12And α
n=α
1Note in this example, keep ε=5 °.Like this, in dash area 75 and 76, that is, be the marginal portion of this direction scope to-10 ° and 10 ° to 15 ° corresponding to two end scopes-15 in the direction scope of craspedodrome direction °.
In step 235, determine whether exist corresponding to the japanning road markings data of entrance lane.Entrance lane is exactly by the track of guidance route appointment in a plurality of tracks of inbound link.As special processing, be included in the road data form (see figure 2) of the road in the direction of the Object node in the inbound link, read from this road data form corresponding to the additional nodes form (see figure 4) of this Object node, read track japanning road markings information then, and determine whether to have stored entrance lane japanning road markings information (see figure 5).If all bits of track japanning road markings information all are " 0 ", the road markings information of then can determining to paint does not exist, and does not have track japanning road markings range of information else if, then can determine not exist japanning road markings information.If the japanning road markings data corresponding to entrance lane exist, then handle proceeding to step 240, otherwise processing end and rreturn value turn back to the initiation program of calling.
In step 240, whether essence is consistent with each other for the direction of definite direction as a result and japanning road markings.More particularly, read in the step 235 each bit of the japanning road markings data (see figure 5) that is defined as " existence ", determine then to determine corresponding to this whether the bit of direction is " 1 " as a result.
Determining direction and as follows as a result corresponding to the corresponding relation between the bit position of direction scope.That is corresponding the 7th bit of craspedodrome direction; Right-hand direction and right front are to corresponding the 6th bit; Corresponding the 5th bit of right-hand direction; Tiltedly the right back to and the right back to corresponding the 4th bit; The right back is to corresponding the 3rd bit; Tiltedly the left back to and the left back to corresponding the 2nd bit; Corresponding the 1st bit of left direction; And tiltedly left to the left front to corresponding the 0th bit.
If determine that direction is consistent with each other with the direction of japanning road markings as a result, then processing finishes, and rreturn value turns back to the initiation program of calling.If direction is inconsistent, then handles and proceed to step 245.
In step 245, direction is as a result determined in decision.More particularly, the direction of the japanning road markings that will determine in step 240 or step 260 is defined as determining direction as a result.After step 245, processing finishes, and rreturn value turns back to the initiation program of calling then.
In addition, in step 250, determine whether angle θ belongs to the part of external definite candidate direction scope.More particularly, determine α
n＜θ≤α
n+ ε or α
m-ε＜θ＜α
mWhether set up, perhaps they all are false.If angle θ belongs to the part of external definite candidate direction scope, then handle and proceed to step 255, return step 215 otherwise handle, the candidate direction scope is determined in decision again therein.
The part of external definite candidate direction scope is the dash area 77 and 78 in Fig. 8, that is, and and-20 ° to-15 ° and 15 ° to 20 ° the scope at the two ends of external direction scope corresponding to the craspedodrome direction.
In step 255, determine whether exist corresponding to the japanning road markings data of entrance lane by the processing similar to step 235.If the japanning road markings information corresponding to entrance lane exists, then handle proceeding to step 260, return step 215 otherwise handle, the candidate direction scope is determined in decision again therein.
In step 260, determine by the processing decision similar whether the direction of candidate direction and japanning road markings is consistent with each other in fact to step 240.If determine that candidate direction is consistent with each other with the direction of japanning road markings, then handle and proceed to step 245, otherwise, handle and return step 215, the candidate direction scope is determined in decision again therein.
In addition, aspect map display program,,, then carry out the voice output and the image demonstration of approximate direction (for example " right-hand rotation " or " left-hand rotation " etc.) by display unit 20 if this direction is not the craspedodrome direction based on the approximate direction that obtains as rreturn value.Attention can with about the approximate direction that obtains as rreturn value whether be the craspedodrome direction decision as about outbound with respect to inbound link determining whether along road along road.Attention shows as image, except the intersection that vehicle will enter, can also be used to for intersection execution subsequently show that outbound shows with respect to the tabulation that turns to of the approximate direction of inbound link.In addition, can carry out one and turn to a demonstration that turns to, with only show successively the intersection that will enter corresponding to each vehicle approximate demonstration.
That is, decision based on this angle and other information, is determined critical angle α then at the outbound of the node in the guidance route of destination and the angle θ (step 205) between the inbound link
iAnd the direction scope of cutting apart with this angle (step 210).
In addition, when angle θ belongs to a direction scope (step 220) of selecting from direction scope (step 215), if angle θ belongs to the marginal portion (step 230) of this direction scope, and the approximate direction of the japanning road markings of the entrance lane of storage and the approximate direction of this direction scope are consistent with each other in fact, then by display unit 20 approximate direction of this direction scope are shown as the approximate direction of definite target.
In addition, when angle θ belongs to direction scope selecting from the direction scope, if angle θ belongs to the periphery of this direction scope, but the approximate direction of japanning road markings of the entrance lane of storage is in fact mutually internally inconsistent with the approximate direction of this direction scope, then is shown as the approximate direction of definite target by will the paint approximate direction of road markings of display unit 20.
In addition, when promptly convenient angle θ belongs to direction scope selecting from the direction scope,,, show the direction scope of this selection then regardless of the information about the japanning road markings of storage if angle θ does not belong to the periphery (step 230) of this direction scope.
In addition, when angle θ does not belong to (step 220) direction scope that (step 215) selected from the direction scope, if angle θ belongs to the part of external this direction scope, and the approximate direction of approximate direction and this direction scope of the japanning road markings of the entrance lane of storage is consistent with each other in fact, then is shown as the approximate direction of definite target by will the paint approximate direction of road markings of display unit 20.
In addition, when angle θ does not belong to (step 220) direction scope that (step 215) selected from the direction scope, if angle θ does not belong to the part of external this direction scope, if perhaps the approximate direction of the japanning road markings of Cun Chu entrance lane is in fact mutually internally inconsistent with the approximate direction of this direction scope, then select another direction scope (step 215), and it is carried out aforesaid operations.
As mentioned above, automobile navigation apparatus 1 has and stores the storage medium (storage inside control module 16, node 31) that is arranged on the corresponding intersection of inbound link (entranceway) node japanning road markings information on every side, carries out as following operation.When the outbound (exit road) of node belongs to the marginal portion of a direction scope that is used for determining approximate direction with respect to the direction of inbound link, based on the japanning road markings information of outbound with respect to the entrance lane of inbound link, decision is in the approximate direction of node middle outlet link (exit road) with respect to inbound link, and voice output and/or image show the approximate direction of the outbound of this decision.
In such arrangement, in automobile navigation apparatus 1, determine in the exit road of intersection approximate direction based on being stored in japanning road markings signal in the storage medium, and show based on this direction of determining for entranceway.Therefore, be that the user is in the automobile navigation apparatus of intersection decision exit road with respect to the approximate direction of entranceway, be arranged on the information that shows about intersection Way out intuitively on the road by utilization, can reduce the inconsistent sensation of user's pairing approximation direction.
Note in the above-described embodiment, though the right side/left-hand rotation direction is determined to realize based on the japanning road markings information that is stored in the storage medium, but should determine and to realize based on japanning road markings information, can also realize that this Way out information shows based near the intersection directly perceived Way out that is arranged on the intersection based on any other Way out information.For example, the right side/left-hand rotation direction is determined and can not realized based on the road traffic sign in the roadside, road based on the japanning road markings.
In addition, in the above-described embodiments, though the right side/left-hand rotation direction is determined to realize based on road markings and the outbound angle θ with respect to inbound link that paints, but it can be provided with like this so that will show that indicated direction is shown as approximate direction and does not consider other information by near the intersection directly perceived Way out such as the japanning road markings that is arranged on the intersection.
In addition, in the above-described embodiment, though can determine the approximate direction of the outbound of guidance route with respect to inbound link,, its can be provided with like this so as to determine and show the intersection that vehicle will enter all outlet ports road approximate direction and no matter guidance route.
Can carry out various changes in the above embodiment of the present invention is apparent for those skilled in the art.But scope of the present invention should be determined by following claim.
Claims (8)
1, a kind of guider comprises:
A storage medium comprises the Way out information that shows based near the Way out intuitively that is arranged on the intersection;
A decision unit determines in the approximate direction of this intersection upper outlet road with respect to entranceway based on this Way out information that is included in this storage medium; And
A display unit is based on the approximate direction demonstration exit road of this decision.
2, guider according to claim 1, wherein, described display unit shows the approximate direction of the described decision of described exit road.
3, guider according to claim 1, wherein, when described exit road belongs to the marginal portion of the direction scope that is provided for determining approximate direction with respect to the direction of described entranceway, described decision unit is based on the described Way out information that is stored on the described storage medium, and decision is in the approximate direction of the above exit road of described intersection with respect to described entranceway.
4, guider according to claim 1, wherein, described decision unit is based on the described Way out information that is stored on the described storage medium, and decision is in the approximate direction of the above exit road of described intersection with respect to the traveling lane of described entranceway.
5, guider according to claim 1, wherein, described entranceway and described exit road are included in the guidance route that points to the destination.
6, according to the described guider of any one claim in the claim 1 to 5, further comprise:
A determining unit determines whether described exit road is included in respect to the direction of described entranceway in one of a plurality of direction scopes of being provided for determining approximate direction;
A unit, based on the positive result in this determining unit, when determining that the direction of described exit road with respect to described entranceway belongs to the marginal portion of one of these a plurality of direction scopes, based on the described Way out information that is stored on the described storage medium, determine in the approximate direction of the above exit road of described intersection with respect to described entranceway; And
A unit, based on the negative decision in this determining unit, when determining that the direction of described exit road with respect to described entranceway belongs to the part of one of external these a plurality of direction scopes, based on the described Way out information that is stored on the described storage medium, determine in the approximate direction of the above exit road of described intersection with respect to described entranceway.
7, a kind of method that is used to comprise the guider of the Way out information that shows based near the Way out directly perceived that is arranged on the intersection, the method comprising the steps of:
Based on this Way out information, decision is in the approximate direction of this intersection upper outlet road with respect to entranceway; And
Approximate direction output exit road based on this decision.
8, a kind of method that is used to comprise the guider of the Way out information that shows based near the Way out directly perceived that is arranged on the intersection, the method comprising the steps of:
Determining whether exit road is included in respect to the direction of entranceway is provided for determining that this exit road is with respect in one of a plurality of direction scopes of the approximate direction of this entranceway;
Based on the positive result in determining at this, when determining that the direction of this exit road with respect to this entranceway belongs to the marginal portion of one of these a plurality of direction scopes, based on this Way out information, decision approximate direction on this intersection; And
Based on the negative decision in determining at this, when determining that the direction of this exit road with respect to this entranceway belongs to the part of one of external these a plurality of direction scopes, based on this Way out information, decision approximate direction on this intersection.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP008210/2004 | 2004-01-15 | ||
| JP2004008210A JP4281559B2 (en) | 2004-01-15 | 2004-01-15 | Navigation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1641710A true CN1641710A (en) | 2005-07-20 |
| CN1331102C CN1331102C (en) | 2007-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100057034A Expired - Fee Related CN1331102C (en) | 2004-01-15 | 2005-01-13 | Navigation apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7483785B2 (en) |
| JP (1) | JP4281559B2 (en) |
| CN (1) | CN1331102C (en) |
| DE (1) | DE102004063034A1 (en) |
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| WO2016000457A1 (en) * | 2014-06-30 | 2016-01-07 | 高德信息技术有限公司 | Navigation action generation method, navigation method and device |
| CN110940348A (en) * | 2018-09-25 | 2020-03-31 | 北京四维图新科技股份有限公司 | Method for calculating and navigating direction of branch road junction, vehicle-mounted navigator and mobile terminal |
| CN113720343A (en) * | 2021-08-16 | 2021-11-30 | 中国科学院上海微系统与信息技术研究所 | Course prediction method based on dynamic data real-time adaptation |
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| JP4869106B2 (en) * | 2007-02-28 | 2012-02-08 | アルパイン株式会社 | Navigation apparatus, intersection enlarged view display method, and map information creation method |
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- 2004-12-28 DE DE102004063034A patent/DE102004063034A1/en not_active Ceased
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| CN101118161B (en) * | 2006-07-31 | 2012-01-11 | 株式会社电装 | Branch guiding device and map generating apparatus |
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| CN110940348A (en) * | 2018-09-25 | 2020-03-31 | 北京四维图新科技股份有限公司 | Method for calculating and navigating direction of branch road junction, vehicle-mounted navigator and mobile terminal |
| CN113720343A (en) * | 2021-08-16 | 2021-11-30 | 中国科学院上海微系统与信息技术研究所 | Course prediction method based on dynamic data real-time adaptation |
Also Published As
| Publication number | Publication date |
|---|---|
| US7483785B2 (en) | 2009-01-27 |
| DE102004063034A1 (en) | 2005-08-04 |
| CN1331102C (en) | 2007-08-08 |
| JP4281559B2 (en) | 2009-06-17 |
| JP2005201767A (en) | 2005-07-28 |
| US20050159884A1 (en) | 2005-07-21 |
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